Water when 50-75% of the soil volume is dry. Always check soil moisture level prior to watering to make sure it needs to be watered. Water thoroughly and discard any excess water in the saucer to discourage root rot.
If you find the soil is taking a long time to dry out between watering you may want to check the drainage holes to make sure they’re not blocked or compacted. You can also aerate the soil by using something like a chopstick. Increase the airflow around your plant by having a fan on low nearby to increase air circulation or placing it closer to a window to increase light levels. These plants need indirect to bright light indoors to thrive.